Water-heater.



UNITED Sierras'N @PATENT OFFICE.

TIIoMAs L. PHILLIPS, on AURORA, ILLINOIS.

WATER-H EATER.

SPECIFICATION forming part of Letters Patent No. 707,349, dated August 19, 1902.

Application led March 3 1902.

To @ZZ whom t may concern:

Beit known that I, THOMAS L. PHILLIPS, a citizen of the United States, residing at Aurora, in the county of Kane and State of Illinois, have invented certain newand useful Improvements in Water-Heaters,of which the following is a specification.

My invention relates to improvements in apparatus for heating water, especially adapt'- ed for use in connection with a system of heating buildings by the circulation of hot Water through continuous pipes and suitable radiators. 'j

The special object of my improvements is to produce a water-heater in which the water is exposed to the heat given oIf by incandescent coals instead of that given by flame, in which the water is caused to circulate through a pipe placed in the hottest part ofthe firebed,in which the water is exposed to the maximum area of heating-surface, and in which all the heat units produced in the fire-bed will be utilized to heat water before they escape through the chimney or smoke-stack.

A further object of myinvention is to pro'- vide a water-heater in which the desired results may be attained by keepingl down the draft to a point sufcient only tokeep the coals red, thus avoiding the wasteful results incident to maintaining a flame for. heating purposes, as is common in water-heaters in general use.

Having the foregoing objects and others of general utility in view, I have produced the heater hereinafter described, andl which is illustrated in the accompanying,V drawings, which form part of this applicationl I In said drawings, Figure l is a vertical section through my improved Water-heater.. Fig.4 2 is an elevation ofthe same, and-Fig. 3 is-a cross-section on the line oc a; of Fig. 1.

Referring to the drawings in detail, A represents the base of my improved heater, in which are included theash-pan a', the ash-box a2, and a plate a3. Secured in any suitable manner to Ithe inner periphery of the plate as are lugs a, which serve as supports fora circular grate B. The grate is formed with a central opening b2 and is adapted to be rocked in a horizontal plane and to be tilted for dumping purposes. Any preferred orwelland; d3.

SerialtNo. 96,530. (No model.)

known means for rocking and dumping the grate may be adopted, 'the same forming no part of Inyinvention,and therefore not shown.

Supported upon and secured to the plate a3, withv a water-tight joint therebetween, is a cylindrical fire-box or magazine C, the vertical diameter of which is approximately three times its horizontal or cross diameter, thus forming a long narrow re-box. Surrounding the ire-box and spaced therefrom is a casing or jacket D, the lower edge of which is secured to the plate a3. The annular chamber between the jacket and the walls of the fire-box is adapted to hold water to be heated by the radiation from the {ire-box in the usualv manner.

The walls of the jacket are perforated near :the top to receive one end of a pipe d and are also perforated near the bottom on opposite sides to receive the ends of the pipes d2 indirectly with the pipe Efabove the heater, as indicatedby dotted lines'in Fig. 1; Connectedwith the pipe d3 isa pipe d4, which passes through an opening in thevwalls of the ash-box below Ythe grate and has its inner end coupled bya suitable elbow withY the pipe E, which passes upwardly through 'the opening b in the grate, through the'ire-b'oX, and has its upper end connected with the heatingpipes in the system.

The fire-box and jacket are covered by a plate'F, in the center of which is an opening Vto permit the passage of the pipe E. Said plate -is also formed with a suitable opening and collar f for a smoke-pipe and is provided i with'a hopper e', through which fuel is placed 'in the fire-box, said hopper being of any desired form and constituting no part of this invention.

The pipe d2 connects with the return-pipes of the heating system, which lead from the connections of the pipe E in the usual manner, thus completing the circuit.

Itwill be noted that' by providing a contracted fire-box with relatively great vertical diameter and Iilling same with fuel I secure a combustion-chamber in which the oxygen drawn through the grate is caused to traverse a long distance, during which it is brought into-intimate contact with the fuel, before it rlhe pipe d is. connected directly or IOO v around said pipe.

escapes up the chimney. By extending the pipe E throughout the entire length of the lire-box and in the center thereof I surround it with a deep bed of red coals, the heat from which cornes into intimate contact with the walls of said pipe, which walls also serve as a iiue or conduit for the drafts of oxygen which enter through the opening b in the grate. As the column of oxygen passes upward along the walls of the pipe E it is met by and mingles with the carbon from the fuel, thus producing a high degree of heat The nre-box may be partially or entirely filled with fuel, the depth of the fire-bed determining the volume of heat to which the water will be subjected.

I am aware that water-heaters have been constructed with a central fire-box and au annular water-chamber or jacket thereabout and that in some instances water-pipes have extended into the iire-boxabove the fire-bed, where they are subjected to the heat generated Within the fire-box, and I therefore do not claim such constructions; but

What I claim as new, and desire to obtain by Letters Patent, is-

l. A water-heater comprising a vertical, narrow iire-box, a grate at the bottom of the fire-box, and a water-conducting pipe extending from the center of the grate throughout the entire length of the re-box and in the center thereof, substantially as set forth.

2. A water-heater comprising a long, narrow, vertical fire-box, a grate at the bottom of said box, and a water-conducting pipe extending upwardly through said grate, and

throughout the entire length of the fire-box, as set forth.

3. A water-heater comprising a nre-box, a water-chamber surrounding said box, a pipe communicating with said chamber, passing through the grate from below, and extending throughout the entire length of said fire-box and in the center thereof, as set forth.

4. In a water-heater, a vertical fire-box narrow in cross-section and adapted to be entirely filled with fuel, a water chamber or jacket surrounding the fire-box, a water-pipe communicating with said chamber and passing throughout the entire length of the firebox and in the center thereof, said pipe and chamber communicating with a system of water-pipes and radiators substantially as set forth.

5. In awater-heater, a vertical fire-box,nar row in cross-section and provided at the top with means for introducing fuel, at the bottom with a grate and ash-pan, and Without openings in its sides; a water-chamber surrounding the lire-box, and water-conducting pipe communicating with said chamber, passing under said grate and up through the center thereof, and extending throughout the length of the iire-box, for the purpose described.

Iu testimony whereof I affix my signature in presence of two witnesses.

THOMAS L. PHILLIPS.

Witnesses:

F. BENJAMIN, L. G. SNOW. 

